Table 5

RNase P is a difficult data-set to study. Five sequences in the high similarity data-set
are truncated at both the 5 and 3 prime ends (due to the primers used for sequencing
these). Sequences in the medium similarity data-set are full-length but do not align
well using traditional tools such as ClustalW. Values corresponding to the re-evaluation
of ILM with pseudo-knot inclusive reference structures are indicated by "ILM-pknot".